Retirement tax questions

Fanfare, thank you for your help.  We let our probate lawyer handle everything and the other 1099-Rs listed the distributions code as "4" in my name.  For whatever reason, the "found" IRA lists the recipient as the "estate of ....." and not me with a distribution code of 4G.  For further clarification, can you explain why we didn't have to pay taxes on the other IRA 1099's that listed my name as recipient with a distribution code of 4?